Chimney and ventilator top



Nov. 25, 1924. 1,516,794

G. o. SAPP CHIMNEY AND VENTILA'IOR TOP Filed June 16, 1922 mm'm I M'fnesv M. 6M 3M 6mm,

Patented Nov. 25, 1924,

arias srares relaxes GEORGE O. SAPP, OF TALLULA, ILLINOIS.

CHIMNEY AND VENTILATOB TOP.

Application filed June 16, 1922.

To all whom it may concern:

Be it known that I, GEORGE O. SAPP, a citizen of the United States,residing at Tallula, in the county of Menard and State of Illinois, haveinvented certain new and useful Improvements in Chimney and VentilatorTops, of which the following is a specification.

My invention relates to improvements in chimney or ventilator cowls andhas for an object to provide for free discharge of smoke and gases, andto prevent downdraft.

Another object of my invention is to prevent water from getting into thechimney or smoke stack and also to prevent wind from interfering withthe draft.

Still another object of my invention is to provide a chimney cowl orventilator, which is simple in construction, durable and inexpensive tomanufacture.

Other objects and advantages of the invention will become apparentduring the course of the following description.

In the accompanying drawings forming a part of this application andwherein like numerals are employed to designate like parts throughoutthe several views;

Figure 1 is a top plan view of the cowl when ventilator cap is omitted,

Figure 2 is a side elevation, shown partly in cross section,

Figure 3 is a plan view of the blank from which the cap is formed,

Figure 4 is a plan view of the blank from which the semi-cylindricalconductors are formed, and

Figure 5 is a plan view of the blank from which the body or sleeve isformed.

In the drawings, wherein for the purpose of illustration is shown thepreferred embodiment of the invention, the numeral 10 designates asleeve or body, formed from blank A as shown in Fig. 5, and adapted tobe secured to a chimney or smoke stack of any ordinary or suitableconstruction. Secured to the body 10 by means of bolts or rivets 11, isa series of semi-cylindrical conductors 12, formed from'a single blankB. These conductors extend beyond the top of the body 10 and terminatein scallops 13. The blank 0 in Fig. 3 is made into cap 14, having itsedge turned down, so as to form Serial No. 568,787.

a peripheral flange 15. The cap is mounted by means of bolts or rivets16, passing through the peripheral flange 15 of the cap, and the portion17 lying between each of the semi-cylindrical conductors, at a pointbelow the scallops 13 leaving a substantial space 18 between the cap 14:and the body 10.

If it is desired a second conical cap 19 may be used. This cap should belarge enough to cover over the conductors and is riveted or bolted tothe top of them.

Thus in use, the conductors are of suitable size to afford a freepassage of gas and smoke in any kind of weather. In windy weather,assuming the wind to be blowing as indicated by the arrow H, in Fig. 2,the wind blowing over and around the scallop top of the conductorcreates a vacuum and draws the smoke upward as indicated by arrow J.The. wind will also be caught by the scalloped conductor on the oppositeside and blow down through the conductor past the top of the smoke pipe,and carry the smoke and gas out of the bottom of the conductor asindicated by the arrows K and L. The cowl will operate satisfactorilyregardless of the direction of the wind, because there is a suflicientnumber of conductors to catch the wind. A second cap mounted on top ofthe scallops will make the cow] an efficient ventilator, which is rainand stormproof.

From the foregoing description taken in connection with the accompanyingdrawings, the advantages of the construction and of the method ofoperation will be readily apparent to those skilled in the art to whichthe invention appertains and while I have described the principal ofoperation of the invention together with the device which I now considerto be the best embodiment thereof, I desire to have it understood thatthe device shown is merely illustrative and such changes may be made asare within the scope of the claimed invention.

Having thus fully described my invention, I claim.

In a chimney cowl, a cylindrical body, a seat bent to provide aplurality of seml-cylindrical smoke conductors provided with an upperscalloped edge, the lower portlon of said sheet fixed to the upperportion of said cylindrical body whereby the conducsheet thereby beingdisposed a distance tors extend above the body, a conical shaped abovethe first cap. 10 cap mounted on the inside of the sheet In testimonywhereof I aflix my signature forming the conductors so as to be disposedin presence of two Witnesses.

a distance above the upper end of the eylin- GEORGE O. SAPP.

drical body, and a second conical shaped Witnesses: cap mounted on theupper ends of the scal- HENRY STUMPER, 10p formed on the scalloped edgeof the ST LLA O. RANDALL.

